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authorAbseil Team <absl-team@google.com>2019-09-25T18·29-0700
committerMark Barolak <mbar@google.com>2019-09-25T19·12-0400
commit502efe6d7841bff82b1aeef5500491fe9a48c635 (patch)
tree55d08454a8d92f086cd6397c8527093f402b3eaa /absl/time/clock.cc
parentccdd1d57b6386ebc26fb0c7d99b604672437c124 (diff)
Export of internal Abseil changes
--
8e04df6fcbd062e5eaf179a6ec9b0a26f8aa8a39 by Abseil Team <absl-team@google.com>:

Use a floating point type for the example usage of absl::uniform_real_distribution.

PiperOrigin-RevId: 271167776

--
5f8f1dfea50bc16a9d9af3e50c4636500a938b29 by Abseil Team <absl-team@google.com>:

the llvm wasm backend does not support this data symbol in text section, so remove it from the test.

PiperOrigin-RevId: 271138100

--
2874542cb212962ac3093fd78fd5e1eb85c126c0 by Xiaoyi Zhang <zhangxy@google.com>:

Work around MSVC 2019 compiler bug related to constexpr in optional_test.
The change in optional_test is necessary to avoid another bug on MSVC
complaining about accessing invalid member of union, and also makes the test
more reasonale by checking the value of a non-static member.

Filed a bug against MSVC
https://developercommunity.visualstudio.com/content/problem/743998/internal-compiler-error-related-to-constexpr-and-u.html.

PiperOrigin-RevId: 271129805

--
3a5d56f0c3362aabf68938fb95c4e2d3eca59538 by Abseil Team <absl-team@google.com>:

Improve precision of absl::GetCurrentTimeNanos() by adjusting
cycle time sooner.

PiperOrigin-RevId: 271007945

--
1e044a6dec7c0ca150fff1aee52dbdb16aa43ed7 by Abseil Team <absl-team@google.com>:

Internal change.

PiperOrigin-RevId: 270962690
GitOrigin-RevId: 8e04df6fcbd062e5eaf179a6ec9b0a26f8aa8a39
Change-Id: Icb05423a7e93ebdae16baadd59a60b75b5cfa249
Diffstat (limited to 'absl/time/clock.cc')
-rw-r--r--absl/time/clock.cc2
1 files changed, 1 insertions, 1 deletions
diff --git a/absl/time/clock.cc b/absl/time/clock.cc
index fa0ed34d1dca..bc6f5ccf2763 100644
--- a/absl/time/clock.cc
+++ b/absl/time/clock.cc
@@ -449,7 +449,7 @@ static uint64_t UpdateLastSample(uint64_t now_cycles, uint64_t now_ns,
     last_sample.min_cycles_per_sample.store(0, std::memory_order_relaxed);
     stats_initializations++;
   } else if (sample->raw_ns + 500 * 1000 * 1000 < now_ns &&
-             sample->base_cycles + 100 < now_cycles) {
+             sample->base_cycles + 50 < now_cycles) {
     // Enough time has passed to compute the cycle time.
     if (sample->nsscaled_per_cycle != 0) {  // Have a cycle time estimate.
       // Compute time from counter reading, but avoiding overflow